Double-rib-warp-knitting machine.



0. GABEL. DOUBLE RIB WARP KNITTING MACHINE.

APPLICATION FILED FEB. 10, 1913.

Patented Nov. 18, 1913.

2 SHEETS-SHEET 1.

o. GBEL. DOUBLE RIB WARP KNITTING MACHINE. APPLICATION FILED FEBJO, 1913.

1,0?8,914. l Patented Nov. 18, 1913.

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MW W T1 W1 WH w1 11111111 1111 uNiTEn sTATEs PATENT OFFICE.

o'rro GBEL, or Aronne., GERMANY, Assieuon To *rim mmf 0F APLbA, GERMANY.

noUnLE-nI-wAaP-xmrrme MAGHINE.

To di whom it may concern.'

Be it `known that I, 'Orro GBEL, residing' at Apolda, in Germany, have invented certain new and useful Improvements in Double-Rib-Warp-Knitting Machines, vof which the following'is a specification. This \inv.ention relates to knitting machines of the type comprising two 'opposite rows of needles for producing goods right on both sides, and the object of theinvention is to provide a machine of thls class adapted for knitting tubular fabrics with open-work pattern, more particularly socalled Hill tubes for mantles. It has heretofore been usual to use circular knitting machines for producing these mantles.

The invention is illustrated inthe accompanying drawing, showing one form of construction of the improved apparatus.

Figure l is a cross section taken through the' holders of the thread presenting members of guides, and Fig. 2 is a side view showing one row of vneedles together with guides coacting therewith. Fig. 3 is a diaram illustrating the production of tubular abric by'means of the machine.

In the drawing 3 and. 3a represent the front and rear needle bars, respectively, 3b and 3 being the ordinary needles. The two bars are moved up and down alternately, the stitches being stripped off the needles on to the bars 24, 25 in well known manner.

. Itis essential to the production of openwork tubular fabric to use a larger number of guides than heretofore, arranged so that the machine can operate in the usual manner, and to this end the eyes of the warp guides must be brought together Within a small space. According to the invention this is effected by arranging that the guides on different holders'lie between each other, either in the case of all the guides or some of them. ln the example illustrated there are twelve guide holders, all side by side, and two holders on each side of the machine are to work in the usual .manner and coperate' in producing the side Speeioation of Letters Patent.

. l()a on the other side,

incandescence nature of the pattern.

frlar operations are and 8n from the rear surface to the front in the drawing these 'guides are designated 5, 6 on one side, and 5,, 6" The guides have holes for guiding the warp threads. Thel intermediate guides designated '7, 8, 9, l1() on one side 1and 7*, 8, 9, are arranged in pairs, so that the holes in each pair register, and permanently retain this position. The relatlve movement of the rows of guides thus interposed between each other is allowed by the`fact that only some of the guides (say each eighth guide) are inserted, and that the longitudinal movement extends only over the space of, say, five guides. The proportions can be varied according to the It will be seen that the arrangement is 0F HUGO BURKHAR'DT, A

Patented Nov. 1S, 5191s. Application filed February 10, 1913. Serial No. 747,356.

on the other side. A

symmetrical at opposite sides of the central line B-B of the machine. The essential feature is the arrangement of the inner pairs of guide holders so that the guides which they carry do not lie in separate rows side by side, but lie between one another. This space saving device enables a large number of guides to work .side by side for producing tubular goods.

The-invention is not restricted to the use of any particular number of guides.

The production of tubular fabric is illustrated in Fig. 3. The guides 5 and 6 coact with the needles 3b to form the front 'surface l and the guides 5a, 6n coact with the needles 3 to produce the rear surface 2. In the diagram. these two surfaces are shown side bv side, but they actually other. The connection of the two surfaces at the edges to produce a fabric having the same pattern as the two surface parts 1 and 2, is effected by means of the guides 7, 8, 9, 10 and 7, 8, 9, 10, which make the connections at the right hand side and left hand side respectively, the connecting stitches being indicated in Fig. 3 by dotted lines.

:The several manner: Guide 7 works from the fourth needle 3", counting from the right hand edge of the rfront surface, and thence to the first needle 3 producingthe rear surface, and then in the sameway back. Guide 8 works from the second needle (front surface) t-o the first, and thence to the third (rear surface), and back. Simiperformed by guides 7a surface; also by guides 9, l0 and 9, 10a at lie one behind thae` to the second needle,g

the opposite .tion with a so-called the left hand edge of the front surface and edge of the rear surface. As will he seen byrref'erence tothe diagrain, four guidesarerequired on eachside for making the connections withexactly the same stitch formation as that ofthe surfaces; otherwise ridges are formed, which is undesirable in connection with incandescence mantles. It would be impracticable to place all the guides side by side in the usual manner, because in this case the swingimparted to the carrier of the guide would be so great that fthe outer guide wouldbecome horizontal, and would be unable to lay the thread over the needles 3", 3. With the overlapping arrangement shown, the swing 'need be no greater than if there were eight guides. v v

Itl has heretofore been proposed in .connec- Cottons patents to secure by Letters Patent knitting machine to arrange two so-called trick bars at an angle so that when in action the ends of thethread guides overlap.

What I claim as myinvention and desire of the United States is In a. double-rib warp knitting machine the I combination with two rows of needles placed opposite each other, of warp guides arranged in pairs so that the ends of the guides belonging In witness whereof yI have signed this `specification in' thel presence of two wit- I'LGSSGS. v

Witnesses WALTER GBEL', 'RUDULPH FRICKE,

oTTo GBEL.

to a pair lie side by side in a single row, for the purpose'set forth. 

